uppose you invest $20,000 by purchasing 200 shares of abbott labs (abt) at $50 per share, 200 shares of lowes (low) at $30 per share, and 100 shares of ball corporation (bll) at $40 per share. suppose over the next year ball has a return of 12.3%, lowes has a return of 23%, and abbott labs has a return of -10%. the value of your portfolio over the year is . group of answer choices $21,916 $19,828 $20,872 $22,959